Yes, the benefits would be immediate.

No, hold off. Waiting for the next generation is worth it.

I own a mid-2011 2.7 GHz 21" iMac with a 1 TB drive. It has 20 GB of RAM. I am thinking of replacing it with a new 3.5 GHz 27" Retina iMac with a 1 TB Fusion drive but I am somewhat hesitant. My most intense application is photo processing with Capture One and web surfing. Capture One puts a strain on my computer and the display update can be a little jerky at times. It doesn't stop me from processing my images but the computer does get hot. I almost cannot touch the top of the aluminum case. Sometimes the fans will turn on if the day was hot too. Web surfing shouldn't sound like an intense activity but many webpages are very complex with lots of scripts and animations. The computer can become mildly warm. My iMac is running pretty hot as I type this long winded message.

My previous iMac was a 2004 PowerPC based machine that I kept until 2001 when the power supply burned up and blackened the inside of the case. I had the computer repaired and sold it on eBay. That machine was eventually heavily loaded running applications like Handbrake. The jump to a mid-2011 iMac was amazing. Not only did I get a massive boost in speed by 3x to 4x but I also entered the Intel based iMac ecosystem.

I feel that the jump from my mid-2011 iMac to a current model Retina system ought to feel the same as when I jumped from a 2004 to a 2011 iMac. Looking at the Geekbench 3.0 scores, I think the performance jump will be about 1.5x. Video performance is no doubt improved but I'm not a gamer requiring high refresh rates. The iMac Retina system is about $2200. That's not a small amount of money. I can eat and live on that for a long time. The upgrade better be worth it for that price!

My other thoughts on upgrading my overall system would be to get a really nice 27" to 32" 4k display for easier photo editing, a Wacom Cintiq to get into digital art, or build up a film scanner outfit. I would run my current machine to failure and upgrade at that time. If my single past data point is to be my reference then I predict that I can get another 3-4 years of functional life out of my current iMac. I would not be surprised if the peripherals I mentioned load up my iMac and make me want to upgrade. Catch-22.

My nearest Apple retailer is about 1 hour and 10 minutes away. I owe them a visit to experience the new machines.

Is there something to be gained from a 27" Retina iMac that would enable me to do something that I can't do now? Would it enable me to do something that I do today but better?

Do you know if the updates to the iMac line include making fusion standard, or at least more affordable? I want to pull the trigger on a new iMac as well (upgrading from a 2010 MacBook Pro) but I don't want to settle for a spinning drive. Have you heard any rumors about hard drives in the new models?

No one truly knows what Apple plans, but I'm confident we will see a new 21.5" 4K retina iMac with a new Late 2015 5K iMac refresh.

As I said before, the current 5K iMac is still massive upgrade over your 2011. However, since your machine is still working you might as well wait a few more months for the Keynote.

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Hi TekeZeke,

Thanks for posting the thread. It was a long, but interesting, read. I can understand your prediction of Retina displays across the iMac range. Perhaps that will drive lower prices across the entire product line since the volume of manufactured Retina displays will be higher.

I can easily hold off until October. If nothing new happens then I know that the current line up will still be waiting for me.

Do you know if the updates to the iMac line include making fusion standard, or at least more affordable? I want to pull the trigger on a new iMac as well (upgrading from a 2010 MacBook Pro) but I don't want to settle for a spinning drive. Have you heard any rumors about hard drives in the new models?

I can't imagine Fusion becoming standard without a non-Fusion option available. Solid state memory devices are not necessarily cheap and drive the final product's prices up. It would make entry into the Mac ecosystem difficult for some. I imagine that the lower priced models will always have a rotating drive in them and the upper end models will maintain their current storage option scheme. Maybe one day we will see solid state drives as standard and "normal" ... but that day is not today.

What happens most of the time is that Apple introduces a great product at a price point that's just out of reach for some. Then, later, they release a "educationally" priced product that offers 50 percent of the performance for 90 percent of the price.It's not great value for the money, but it does meet a firm price point.

Fusion drives are cheap for Apple because they can make or buy flash memory very economically for use in their iOS devices.

What happens most of the time is that Apple introduces a great product at a price point that's just out of reach for some. Then, later, they release a "educationally" priced product that offers 50 percent of the performance for 90 percent of the price.It's not great value for the money, but it does meet a firm price point.

Fusion drives are cheap for Apple because they can make or buy flash memory very economically for use in their iOS devices.

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They use vastly different and much slower flash drives in their IOS devices.

They may go to all fusion as standard (the entry level 21.5 excepted, I don't think that'll get 4K either) accross teh lineup it seems that is the way they are going slowly.

21.5 inch 5k retina screen on a iMac sound appealing to get. I hop also make changes on the chassis regarding a door to add more memory. I change 3HD to ssd on the 21.5 imac these week, a on the way we add more memory to 16. Let see if i can get one today.

21.5 inch 5k retina screen on a iMac sound appealing to get. I hop also make changes on the chassis regarding a door to add more memory. I change 3HD to ssd on the 21.5 imac these week, a on the way we add more memory to 16. Let see if i can get one today.

A 21.5" Retina iMac coupled with a larger external monitor could be a good combination. However, let's hope Apple adds user accessible memory as @caralosdbernard mentioned above. Not having a door could be a deal killer for a lot of people, me included.

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